patch 8.1.1306: Borland support is outdated and doesn't work

Problem:    Borland support is outdated and doesn't work.
Solution:   Remove Borland support, there are other (free) compilers
            available. (Thomas Dziedzic, Ken Takata, closes #4364)
diff --git a/src/normal.c b/src/normal.c
index 8d4cf09..e297a2e 100644
--- a/src/normal.c
+++ b/src/normal.c
@@ -27,11 +27,7 @@
 #ifdef FEAT_EVAL
 static void	set_vcount_ca(cmdarg_T *cap, int *set_prevcount);
 #endif
-static int
-#ifdef __BORLANDC__
-    _RTLENTRYF
-#endif
-		nv_compare(const void *s1, const void *s2);
+static int	nv_compare(const void *s1, const void *s2);
 static void	op_colon(oparg_T *oap);
 static void	op_function(oparg_T *oap);
 #if defined(FEAT_MOUSE)
@@ -422,9 +418,6 @@
  * through the index in nv_cmd_idx[].
  */
     static int
-#ifdef __BORLANDC__
-_RTLENTRYF
-#endif
 nv_compare(const void *s1, const void *s2)
 {
     int		c1, c2;